The MiG 1.44 finally made its maiden flight in February 2000, just nine years behind schedule, with test pilot Vladimir Gorboonov in the cockpit. During the 18-minute flight, the 1.44 reached a maximum height of 1,000 m (3,300 ft) and reached speeds of 600 km/h (370 mph).
Did the United States taxpayer fund the development of China's backbone fighter plane? - History Stack Exchange
The National Interest: Blog
Russia's MiG 1.44 is Russia's Knock-Off F-22 Fighter
MiG 1.44 The National Interest
The Su-57 is marketed as stealth fighter but radars have between 6 to 10 times greater detection range against the Felon compared to F-22 & F-35. Here's why. - The Aviation Geek Club
Sukhoi T-50 PAK FA (Su-57) Thai Military and Asian Region
The man who stole America's stealth fighter secrets for China
Lockheed Martin F-22 Raptor, Military Wiki
Take A Look At This Unusual Drone Video Of Two Russian Su-57 Fighters In Flight - The Aviationist
New and easy: will Russia create invisibility as an appendage to the Su-57?
Fifth-generation jet fighter, Military Wiki
Watch Russia's 5th Gen. stealth fighter perform stunning aerobatics, including Cobra and flat spin - The Aviationist